1989798580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{743}}^1$

素因数の和:854

約数の個数: 192

約数和(自身を含む): 5471649792

約数和(自身を除く): 3481851212

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 37, 44, 47, 55, 70, 74, 77, 94, 110, 140, 148, 154, 185, 188, 220, 235, 259, 308, 329, 370, 385, 407, 470, 517, 518, 658, 740, 743, 770, 814, 940, 1034, 1036, 1295, 1316, 1486, 1540, 1628, 1645, 1739, 2035, 2068, 2585, 2590, 2849, 2972, 3290, 3478, 3619, 3715, 4070, 5170, 5180, 5201, 5698, 6580, 6956, 7238, 7430, 8140, 8173, 8695, 10340, 10402, 11396, 12173, 14245, 14476, 14860, 16346, 17390, 18095, 19129, 20804, 24346, 26005, 27491, 28490, 32692, 34780, 34921, 36190, 38258, 40865, 48692, 52010, 54982, 56980, 57211, 60865, 69842, 72380, 76516, 81730, 95645, 104020, 109964, 114422, 121730, 133903, 137455, 139684, 163460, 174605, 191290, 192437, 228844, 243460, 244447, 267806, 274910, 286055, 302401, 349210, 382580, 384131, 384874, 488894, 535612, 549820, 572110, 604802, 669515, 698420, 768262, 769748, 962185, 977788, 1144220, 1209604, 1222235, 1292077, 1339030, 1512005, 1536524, 1920655, 1924370, 2116807, 2444470, 2584154, 2678060, 2688917, 3024010, 3841310, 3848740, 4233614, 4888940, 5168308, 5377834, 6048020, 6460385, 7682620, 8467228, 9044539, 10584035, 10755668, 12920770, 13444585, 14212847, 18089078, 21168070, 25841540, 26889170, 28425694, 36178156, 42336140, 45222695, 53778340, 56851388, 71064235, 90445390, 99489929, 142128470, 180890780, 198979858, 284256940, 397959716, 497449645, 994899290, 1989798580]

約数ペア:

[(1, 1989798580), (2, 994899290), (4, 497449645), (5, 397959716), (7, 284256940), (10, 198979858), (11, 180890780), (14, 142128470), (20, 99489929), (22, 90445390), (28, 71064235), (35, 56851388), (37, 53778340), (44, 45222695), (47, 42336140), (55, 36178156), (70, 28425694), (74, 26889170), (77, 25841540), (94, 21168070), (110, 18089078), (140, 14212847), (148, 13444585), (154, 12920770), (185, 10755668), (188, 10584035), (220, 9044539), (235, 8467228), (259, 7682620), (308, 6460385), (329, 6048020), (370, 5377834), (385, 5168308), (407, 4888940), (470, 4233614), (517, 3848740), (518, 3841310), (658, 3024010), (740, 2688917), (743, 2678060), (770, 2584154), (814, 2444470), (940, 2116807), (1034, 1924370), (1036, 1920655), (1295, 1536524), (1316, 1512005), (1486, 1339030), (1540, 1292077), (1628, 1222235), (1645, 1209604), (1739, 1144220), (2035, 977788), (2068, 962185), (2585, 769748), (2590, 768262), (2849, 698420), (2972, 669515), (3290, 604802), (3478, 572110), (3619, 549820), (3715, 535612), (4070, 488894), (5170, 384874), (5180, 384131), (5201, 382580), (5698, 349210), (6580, 302401), (6956, 286055), (7238, 274910), (7430, 267806), (8140, 244447), (8173, 243460), (8695, 228844), (10340, 192437), (10402, 191290), (11396, 174605), (12173, 163460), (14245, 139684), (14476, 137455), (14860, 133903), (16346, 121730), (17390, 114422), (18095, 109964), (19129, 104020), (20804, 95645), (24346, 81730), (26005, 76516), (27491, 72380), (28490, 69842), (32692, 60865), (34780, 57211), (34921, 56980), (36190, 54982), (38258, 52010), (40865, 48692)]